高强度低合金热轧带钢均匀冷却控制技术

IF 1.7 3区材料科学 Q2 METALLURGY & METALLURGICAL ENGINEERING

Ironmaking & Steelmaking Pub Date : 2023-03-10 DOI:10.1080/03019233.2023.2182037

Aigeng Fei, Zhiyi Zhao, R. Xue

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引用次数: 0

摘要

高强度低合金热轧带钢层流冷却时横向温度的不均匀性会导致组织、力学性能和内应力的不均匀分布。边缘掩蔽是一种改善层流冷却非均匀性的控制技术。本文根据条带的横向变换特性，建立了不同的边缘掩蔽方案。结果表明:在相变过程中，慢速冷却7.1 s可以降低带材边缘和中部的晶粒尺寸、内应力和显微硬度的不均匀性;此外，利用主成分分析法建立了晶粒尺寸与转变起始温度等6个变量的关系模型。为建立非线性冷却条件下的微观结构预测模型提供了新的思路。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Homogeneous cooling control technology for high-strength low-alloy hot-rolled strip

ABSTRACT Heterogeneities of transverse temperature during laminar cooling of high-strength low-alloy hot-rolled strip can cause heterogeneous distribution of microstructure, mechanical property and internal stress. Edge masking is a control technology that can be used to improve laminar cooling heterogeneities. In this paper, different edge masking schemes were set up based on the transverse transformation characteristics of the strip. The results show that a slow cooling of 7.1 s during transformation could reduce the heterogeneity of grain size, internal stress and microhardness at the edge and middle of the strip. In addition, the relationship model between grain size and six variables such as transformation start temperature was established by PCA. It provided a new idea for the construction of a microstructure prediction model under nonlinear cooling.

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来源期刊

Ironmaking & Steelmaking 工程技术-冶金工程

CiteScore

3.70

自引率

9.50%

发文量

125

审稿时长

2.9 months

期刊介绍： Ironmaking & Steelmaking: Processes, Products and Applications monitors international technological advances in the industry with a strong element of engineering and product related material. First class refereed papers from the international iron and steel community cover all stages of the process, from ironmaking and its attendant technologies, through casting and steelmaking, to rolling, forming and delivery of the product, including monitoring, quality assurance and environmental issues. The journal also carries research profiles, features on technological and industry developments and expert reviews on major conferences.